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(PECL imagick 2.0.0)
ImagickPixelIterator::resetIterator — Resets the pixel iterator
本函数还未编写文档,仅有参数列表。
Resets the pixel iterator. Use it in conjunction with ImagickPixelIterator::getNextIteratorRow() to iterate over all the pixels in a pixel container.
成功时返回 TRUE
。
Example #1 ImagickPixelIterator::resetIterator()
<?php
function resetIterator ( $imagePath ) {
$imagick = new \ Imagick ( realpath ( $imagePath ));
$imageIterator = $imagick -> getPixelIterator ();
foreach ( $imageIterator as $pixels ) {
foreach ( $pixels as $column => $pixel ) {
if ( $column % 2 ) {
$pixel -> setColorValue (\ Imagick :: COLOR_RED , 64 );
}
}
$imageIterator -> syncIterator ();
}
$imageIterator -> resetiterator ();
foreach ( $imageIterator as $pixels ) {
foreach ( $pixels as $column => $pixel ) {
if ( $column % 3 ) {
$pixel -> setColorValue (\ Imagick :: COLOR_BLUE , 64 );
//$pixel->setColor("rgba(0, 0, 128, 0)");
}
}
$imageIterator -> syncIterator ();
}
$imageIterator -> clear ();
header ( "Content-Type: image/jpg" );
echo $imagick ;
}
?>